Add CODEOWNERS file

[mads-hartmann]

Description

As part of moving to using Github for PR review automation we are going to remove OWNERS in favour of CODEOWNERS (see RFC for details).

This PR adds the CODEOWNERS file. We will remove the OWNERS files once we have switched Tide to use Github Reviews (instead of the approved label, see gitpod-io/gitbot#65).

This can be merged now. The CODEOWNERS will then show up as "suggested" reviewers when you open a PR but reviews from CODEOWNERS are not required (we'll enable that later).

The CODEOWNERS file was generated using the following script and then modified slightly

Updated: there was a bug in the original script, see here. The script below has been updated in case we need to run it again)

#!/usr/bin/env bash

set -euo pipefail

function format-owner {
    for owner in $*
    do
        case $owner in
            engineering-platform)
                echo -n "@gitpod-io/platform "
                ;;
            engineering-*)
                echo -n "@gitpod-io/$owner "
                ;;
            *)
                echo -n "@$owner "
                ;;
        esac
    done
}

CODEOWNERS_FILE=/workspace/gitpod/.github/CODEOWNERS

rm -f "${CODEOWNERS_FILE}"
touch "${CODEOWNERS_FILE}"

shopt -s globstar nullglob
for OWNERS in **/OWNERS .werft/**/OWNERS; do
    owners="$(yq read --tojson "${OWNERS}" 'approvers' | jq -r 'join(" ")')"
    github_owners="$(format-owner $owners)"
    path="${OWNERS/\/OWNERS/}"
    echo "/$path $github_owners" >> "${CODEOWNERS_FILE}"
done

# Sort file based on path
sort -o "${CODEOWNERS_FILE}" "${CODEOWNERS_FILE}"

# Remoe trailing newlines (introduce by format-owner)
sed -i 's/\s+$//g' "${CODEOWNERS_FILE}"

Related Issue(s)

Part of https://github.com/gitpod-io/ops/issues/839

How to test

CODEOWNERS is hard to test. Once merged we should see the CODEOWNERS show up as suggested Reviewers when opening PRs.

Release Notes

NONE

Documentation

N/A

[codecov]

Codecov Report

Merging #7998 (c99b31b) into main (95a36d8) will decrease coverage by 1.15%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #7998      +/-   ##
==========================================
- Coverage   12.01%   10.86%   -1.16%     
==========================================
  Files          20       18       -2     
  Lines        1190     1022     -168     
==========================================
- Hits          143      111      -32     
+ Misses       1043      909     -134     
+ Partials        4        2       -2     

Flag	Coverage Δ
components-gitpod-cli-app	10.86% <ø> (ø)
components-local-app-app-darwin-amd64	?
components-local-app-app-darwin-arm64	?
components-local-app-app-linux-amd64	?
components-local-app-app-linux-arm64	?
components-local-app-app-windows-386	?
components-local-app-app-windows-amd64	?
components-local-app-app-windows-arm64	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
components/local-app/pkg/auth/pkce.go
components/local-app/pkg/auth/auth.go

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[csweichel]

looks great. We should ask the team leads to double check that the GitHub teams are correct.

/lgtm

[roboquat]

LGTM label has been added.

Git tree hash: e4fdebf5d0c63aea2c83e57278f0a6cdd8479479

[roboquat]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: csweichel

Associated issue: #839

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [csweichel]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[mads-hartmann]

@csweichel I was too slow to add the hold label so now this is merged 😬 I won't revert as the CODEOWNERS file doesn't do much yet. Before enabling branch protection rules to require reviews from code owners I'll ping the leads to verify the CODEOWNERS file looks correct.

[JanKoehnlein]

I think once is enough

[mads-hartmann]

haha this turned out to be a bug. Fixing in upcoming PR

[mads-hartmann]

Was fixed in https://github.com/gitpod-io/gitpod/pull/8000/files and there were not other cases of multiple teams being approvers in the same OWNERS file

[JanKoehnlein]

Awesome. That should make the changelog job a lot easier!

[kylos101]

For posterity I reviewed the CODEOWNERS file and LGTM.